@Ignannon nice to hear you're making progress.
When you start making your own match ammo, you'll find some bullets require more tuning effort than others in order to get a good accurate load. For quicker progress you choose a "tolerant" bullets such as the Sierra 168 Matchking (providing you'll be shooting it at 800 yards or less), or the Sierra 175 Matchking (a good 1000 yard bullet), or a Berger 155.5 Fullbore (also a good 1000 yard bullet). Lapua brass is great. Use the same old powders that everybody else is using successfully for .308 target ammo - Varget, H4895, N140, Reloder-15, etc.